Check valve ARCO VITAQ 2" (DN50) – brass non-return valve, model 191208

The ARCO VITAQ 2" (DN50) check valve is a brass non-return valve designed to prevent backflow in liquid piping systems. Its threaded brass body provides mechanical strength and corrosion resistance typical of copper-alloy components used in plumbing and heating installations. The valve is intended for inline mounting in supply lines to protect pumps, boilers and fixtures from reverse flow and to maintain directional fluid control.

Advantages

The brass construction offers durability and resistance to corrosion in typical potable water and heating system environments. Threaded connections enable straightforward installation without special adapters in compatible DN50 threaded pipelines. The compact DN50 format reduces pressure loss compared with larger, more complex assemblies while providing reliable non-return functionality to prevent water hammer and reverse flow.

Suitable for

• Domestic and commercial potable water supply lines
• Heating circuits and boiler protection
• Pump discharge lines to prevent backflow
• Piping systems requiring a compact, threaded non-return valve

Key specifications

• Size: DN50 (2" nominal)
• Material: brass body
• Connection type: threaded ends for inline installation
• Function: check / non-return valve to prevent backflow
• Typical applications: water and heating systems

How to use

Install the valve in the flow direction indicated on the body, ensuring threaded connections are tightened to appropriate torque and sealed with suitable thread sealant where required. Mount the valve in a straight section of pipe to avoid turbulence; allow sufficient access for future inspection and maintenance. Verify compatibility of thread type and pipe fittings prior to installation and follow local plumbing codes. After installation, pressurize the system and check for leaks and correct directional operation.

Usage recommendations

Use the valve within the operating pressure and temperature limits typical for brass check valves in water and heating systems. Avoid installation where aggressive chemicals or media outside the valve's material compatibility may be present. Periodic inspection is recommended to ensure seating surfaces remain free of debris and the valve continues to operate as a non-return device.